The Peace Corps will pull 340 volunteers from the three West African countries (Liberia, Sierra Leone, and Guinea) that are suffering from an Ebola outbreak; two volunteers were exposed to the virus but are not showing signs of infection. From Reuters:

A Peace Corps spokesperson said two volunteers were isolated and under observation after being exposed to a person who later died of Ebola.

"These volunteers are not symptomatic and are currently isolated and under observation," the spokesperson said in a statement ...

The two volunteers would return to the United States once they were cleared to travel, the Peace Corps spokesperson added.